7 February 2005 Digital holographic smart card system using an organic-inorganic hybrid type photopolymer film
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Abstract
Organic-inorganic nanocomposite films were prepared by dispersing an aromatic methacrylic monomer and a photo-initiator in organic-inorganic hybrid sol-gel matrices. The film properties could be controlled by optimizing the content of an organically modified silica precursor (TSPEG) in the sol-gel matrices. The photopolymer film modified with the organic chain (TSPEG) showed high diffraction efficiency (>90%) under an optimized condition. In addition, we implement a digital holographic security system that combines the electrical biometrics technology with fully digital holographic storage using an organic-inorganic hybrid type photopolymer film.
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Junghoi Kim, Junghoi Kim, Nam Kim, Nam Kim, Jiyoung Park, Jiyoung Park, Eunkyoung Kim, Eunkyoung Kim, Seokhee Jeon, Seokhee Jeon, } "Digital holographic smart card system using an organic-inorganic hybrid type photopolymer film", Proc. SPIE 5636, Holography, Diffractive Optics, and Applications II, (7 February 2005); doi: 10.1117/12.578212; https://doi.org/10.1117/12.578212
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